Skip to content

Content starts here

CLOSE ×

Red Membership Card

AARP Membership — $15 for your first year when you sign up for Automatic Renewal

Get instant access to members-only products and hundreds of discounts, a free second membership, and a subscription to AARP the Magazine.

Brain Teaser

Challenge Your Cognitive Know-How!

By

Staying Sharp

Published April 23, 2026

What’s one key thing your brain does during sleep to help you remember information?

Powers down completely to conserve energy

Filters out unnecessary emotional memories

Strengthens and stores newly learned information

Stacks memories in the order you learned them

Sleep helps lock in new information by transferring it into longer-term storage. Without enough sleep, those memories are more likely to fade or get lost. Learn more here about why a good rest is good medicine.

0 Correct

0 Incorrect

Oops...something went wrong. Please log out and log back in to continue.

More From Staying Sharp

Sleeping Pills May Impact Memory Loss

Learn how to sleep better without medication and reduce your risk of memory issues

Calm Your Mind for More Restful Sleep

Try these techniques to break the cycle of stress and sleeplessness

A Healthy Diet May Be Linked to Better Sleep

Understand how your diet influences your sleep quality and find ways to improve it

Benefits Recommended For You

Legal Disclaimer: Staying Sharp, including all content and features, is offered for informational purposes and to educate users on brain health care and medical issues that may affect their daily lives. Staying Sharp is based on a holistic, lifestyle approach to brain health that encourages users to incorporate into their daily lives activities that are associated with general wellness. Nothing in the service should be considered, or used as a substitute for, medical advice, diagnosis, or treatment. Features including the Cognitive Assessment and Lifestyle Check-Ins, Additional Tests, exercises, and challenges assess performance at a particular moment in time on certain discrete cognitive tasks. Staying Sharp games are intended for entertainment and recreational purposes only. Various factors may affect performance, including sleep, tiredness, focus, and other social, environmental, or emotional factors. Performance is not indicative of cognitive health and not predictive of future performance or medical conditions.

Unused AARP Rewards points expire 12 months after they are earned, in monthly batches on a rolling basis.